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<h1>src/qvblockprogramming/qvprocessingblocks/qvfilterselectorblock.h</h1><a href="qvfilterselectorblock_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *      Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012. PARP Research Group.</span>
<a name="l00003"></a>00003 <span class="comment"> *      &lt;http://perception.inf.um.es&gt;</span>
<a name="l00004"></a>00004 <span class="comment"> *      University of Murcia, Spain.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> *      This file is part of the QVision library.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *      QVision is free software: you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> *      it under the terms of the GNU Lesser General Public License as</span>
<a name="l00010"></a>00010 <span class="comment"> *      published by the Free Software Foundation, version 3 of the License.</span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> *      QVision is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> *      but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> *      GNU Lesser General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> *      You should have received a copy of the GNU Lesser General Public</span>
<a name="l00018"></a>00018 <span class="comment"> *      License along with QVision. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 <span class="preprocessor">#ifndef QVFILTERSELECTORWORKER_H</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#define QVFILTERSELECTORWORKER_H</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;qvipp.h&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;qvip.h&gt;</span>
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 <span class="preprocessor">#include &lt;QVImage&gt;</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include &lt;QVProcessingBlock&gt;</span>
<a name="l00033"></a>00033 
<a name="l00034"></a>00034 <span class="preprocessor">#include &lt;QVIndexedStringList&gt;</span>
<a name="l00035"></a>00035 
<a name="l00037"></a>00037 
<a name="l00041"></a>00041 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">int</span> C&gt; <span class="keyword">class </span>QVFilterSelectorBlock: <span class="keyword">public</span> <a class="code" href="classQVProcessingBlock.html" title="Base class for Block threads.">QVProcessingBlock</a>
<a name="l00042"></a>00042         {
<a name="l00043"></a>00043         <span class="keyword">private</span>:
<a name="l00044"></a>00044                 <a class="code" href="classQVIndexedStringList.html" title="String List with a current string index.">QVIndexedStringList</a> firstFilter;
<a name="l00045"></a>00045 
<a name="l00047"></a>00047                 <span class="comment">// Function that apply a canny filter</span>
<a name="l00048"></a>00048                 <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,1&gt;</a> cannyIterate(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,1&gt;</a> image, <span class="keywordtype">double</span> threLow, <span class="keywordtype">double</span> threHigh)
<a name="l00049"></a>00049                         {
<a name="l00051"></a>00051                         <span class="comment">// Read input parameters</span>
<a name="l00052"></a>00052                         uInt cols = image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(), rows = image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00053"></a>00053                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat&gt;</a> imageFloat(cols, rows), dX(cols, rows), dY(cols, rows), dXNeg(cols, rows);
<a name="l00054"></a>00054                         <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>  canny(cols, rows), buffer;
<a name="l00055"></a>00055                 
<a name="l00057"></a>00057                         <span class="comment">// Convert image from uChar to sShort</span>
<a name="l00058"></a>00058                         Convert(image, imageFloat);
<a name="l00059"></a>00059                 
<a name="l00061"></a>00061                         <span class="comment">// Obtain horizontal and vertical gradients from image</span>
<a name="l00062"></a>00062                         <a class="code" href="group__qvippFF.html#ga80cdf87494c982146fbaf42fa4e1886f" title="QVision wrapper function for IPP&amp;#39;s ippiFilterSobelHorizMask_32f_C1R.">FilterSobelHorizMask</a>(imageFloat, dY, ippMskSize3x3);
<a name="l00063"></a>00063                         <a class="code" href="group__qvippFF.html#gac4c214ba6435857ee9874d2103e99418" title="QVision wrapper function for IPP&amp;#39;s ippiFilterSobelVertMask_32f_C1R.">FilterSobelVertMask</a>(imageFloat, dX, ippMskSize3x3);
<a name="l00064"></a>00064                         <a class="code" href="group__qvippIAALO.html#gadc8a14bd103bb45afa43950ce454f2fd" title="Adds, subtracts, or multiplies pixel values of an image and a constant, and places...">MulC</a>(dX, -1, dXNeg);
<a name="l00065"></a>00065                 
<a name="l00067"></a>00067                         <span class="comment">// Apply Canny operator</span>
<a name="l00068"></a>00068                         <a class="code" href="group__qvippCV.html#ga81da042e746aff629cf0e0f45b0f9cb7" title="Allocates size in a buffer image for temporary data for function Canny.This function...">CannyGetSize</a>(canny, buffer);
<a name="l00069"></a>00069                         <a class="code" href="group__qvippCV.html#ga56269a74576283f8743352552aadc12a" title="Creates binary image of source&amp;#39;s image edges, using derivatives of the first...">Canny</a>(dXNeg, dY, canny, threLow, threHigh, buffer);
<a name="l00070"></a>00070                 
<a name="l00072"></a>00072                         <span class="comment">// Publish resulting images</span>
<a name="l00073"></a>00073                         <span class="keywordflow">return</span> canny;
<a name="l00074"></a>00074                         }
<a name="l00075"></a>00075 
<a name="l00076"></a>00076 
<a name="l00078"></a>00078                 <span class="comment">// Function that apply the selected filter</span>
<a name="l00079"></a>00079                 <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,1&gt;</a> applyFilter(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,1&gt;</a> image, <span class="keywordtype">int</span> choice, <span class="keywordtype">double</span> threLow, <span class="keywordtype">double</span> threHigh, <span class="keywordtype">bool</span> sizeOf5, <span class="keywordtype">int</span> maskRow, <span class="keywordtype">int</span> maskCol)
<a name="l00080"></a>00080                         {
<a name="l00081"></a>00081                         <span class="keywordflow">switch</span> (choice)
<a name="l00082"></a>00082                                 {
<a name="l00083"></a>00083                                 <span class="keywordflow">case</span> 0: <span class="comment">// None</span>
<a name="l00084"></a>00084                                         {
<a name="l00085"></a>00085                                         <span class="keywordflow">break</span>;
<a name="l00086"></a>00086                                         }
<a name="l00087"></a>00087                                 <span class="keywordflow">case</span> 1: <span class="comment">// Canny</span>
<a name="l00088"></a>00088                                         {
<a name="l00089"></a>00089                                         image = cannyIterate(image, threLow, threHigh);
<a name="l00090"></a>00090                                         <span class="keywordflow">break</span>;
<a name="l00091"></a>00091                                         }
<a name="l00092"></a>00092                                 <span class="keywordflow">case</span> 2: <span class="comment">// Hessian</span>
<a name="l00093"></a>00093                                         {
<a name="l00094"></a>00094                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00095"></a>00095                                         <a class="code" href="group__qvipp.html#ga5e1dd92e6da496d1e621861eb2b67cf9" title="Obtains the Hessian corner response image.">FilterHessianCornerResponseImage</a>(image, auxImage);
<a name="l00096"></a>00096                                         <a class="code" href="group__qvippIAALO.html#ga1c3b64b9805d40a0fee1709bfdbb0b4e" title="Computes the natural logarithm of each pixel values of a source image and places...">Ln</a>(auxImage, auxImage);
<a name="l00097"></a>00097                                         FilterNormalize(auxImage, image);
<a name="l00098"></a>00098                                         <span class="keywordflow">break</span>;
<a name="l00099"></a>00099                                         }
<a name="l00100"></a>00100                                 <span class="keywordflow">case</span> 3: <span class="comment">// Harris</span>
<a name="l00101"></a>00101                                         {
<a name="l00102"></a>00102                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00103"></a>00103                                         <a class="code" href="group__qvipp.html#ga500350a4e3dc3d05b99bd034ab65a67b" title="Obtains the Harris corner response image.">FilterHarrisCornerResponseImage</a>(image, auxImage);
<a name="l00104"></a>00104                                         <a class="code" href="group__qvippIAALO.html#ga1c3b64b9805d40a0fee1709bfdbb0b4e" title="Computes the natural logarithm of each pixel values of a source image and places...">Ln</a>(auxImage, auxImage);
<a name="l00105"></a>00105                                         FilterNormalize(auxImage, image);
<a name="l00106"></a>00106                                         <span class="keywordflow">break</span>;
<a name="l00107"></a>00107                                         }
<a name="l00108"></a>00108                                 <span class="keywordflow">case</span> 4: <span class="comment">// DOG</span>
<a name="l00109"></a>00109                                         {
<a name="l00110"></a>00110                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00111"></a>00111                                         <span class="comment">//FilterDoG(image, auxImage);</span>
<a name="l00112"></a>00112                                         <a class="code" href="group__qvippIAALO.html#ga1c3b64b9805d40a0fee1709bfdbb0b4e" title="Computes the natural logarithm of each pixel values of a source image and places...">Ln</a>(auxImage, auxImage);
<a name="l00113"></a>00113                                         FilterNormalize(auxImage, image);
<a name="l00114"></a>00114                                         <span class="keywordflow">break</span>;
<a name="l00115"></a>00115                                         }
<a name="l00116"></a>00116                                 <span class="keywordflow">case</span> 5: <span class="comment">// Gauss</span>
<a name="l00117"></a>00117                                         {
<a name="l00118"></a>00118                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00119"></a>00119                                         <span class="keywordflow">if</span> (sizeOf5)
<a name="l00120"></a>00120                                                 <a class="code" href="group__qvippFF.html#gae5c1010fcf026e45590b363519769da5" title="QVision wrapper function for IPP&amp;#39;s ippiFilterGauss_8u_C1R.">FilterGauss</a>(image, auxImage, ippMskSize5x5);
<a name="l00121"></a>00121                                         <span class="keywordflow">else</span>
<a name="l00122"></a>00122                                                 <a class="code" href="group__qvippFF.html#gae5c1010fcf026e45590b363519769da5" title="QVision wrapper function for IPP&amp;#39;s ippiFilterGauss_8u_C1R.">FilterGauss</a>(image, auxImage, ippMskSize3x3);
<a name="l00123"></a>00123                                         <span class="keywordflow">return</span> auxImage;
<a name="l00124"></a>00124                                         <span class="keywordflow">break</span>;
<a name="l00125"></a>00125                                         }
<a name="l00126"></a>00126                                 <span class="keywordflow">case</span> 6: <span class="comment">// Sharpen</span>
<a name="l00127"></a>00127                                         {
<a name="l00128"></a>00128                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00129"></a>00129                                         <a class="code" href="group__qvippFF.html#ga66c41b76bbad4f212ae571b33df8d92e" title="Filters an image using a sharpening filter.This function applies a sharpening filter...">FilterSharpen</a>(image, auxImage);
<a name="l00130"></a>00130                                         <span class="keywordflow">return</span> auxImage;
<a name="l00131"></a>00131                                         <span class="keywordflow">break</span>;
<a name="l00132"></a>00132                                         }
<a name="l00133"></a>00133                                 <span class="keywordflow">case</span> 7: <span class="comment">// Box</span>
<a name="l00134"></a>00134                                         {
<a name="l00135"></a>00135                                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat, 1&gt;</a> auxImage(image);
<a name="l00136"></a>00136                                         <a class="code" href="group__qvippFF.html#ga2d118e9683ff100e1ae96b54158040ca" title="QVision wrapper function for IPP&amp;#39;s ippiFilterBox_8u_C1R.">FilterBox</a>(image, auxImage, QSize(maskRow, maskCol));
<a name="l00137"></a>00137                                         <span class="keywordflow">return</span> auxImage;
<a name="l00138"></a>00138                                         <span class="keywordflow">break</span>;
<a name="l00139"></a>00139                                         }
<a name="l00140"></a>00140                                 }
<a name="l00141"></a>00141                         <span class="keywordflow">return</span> image;
<a name="l00142"></a>00142                         }
<a name="l00143"></a>00143 
<a name="l00144"></a>00144         <span class="keyword">public</span>:
<a name="l00145"></a>00145                 QVFilterSelectorBlock(QString name = QString()): <a class="code" href="classQVProcessingBlock.html" title="Base class for Block threads.">QVProcessingBlock</a>(name)
<a name="l00146"></a>00146                         {
<a name="l00148"></a>00148                         <span class="comment">// Generate the filter&#39;s combobox</span>
<a name="l00149"></a>00149                         firstFilter.append(<span class="stringliteral">&quot;None&quot;</span>);
<a name="l00150"></a>00150                         firstFilter.append(<span class="stringliteral">&quot;Canny&quot;</span>);
<a name="l00151"></a>00151                         firstFilter.append(<span class="stringliteral">&quot;Hessian&quot;</span>);
<a name="l00152"></a>00152                         firstFilter.append(<span class="stringliteral">&quot;Harris&quot;</span>);
<a name="l00153"></a>00153                         firstFilter.append(<span class="stringliteral">&quot;DOG&quot;</span>);
<a name="l00154"></a>00154                         firstFilter.append(<span class="stringliteral">&quot;Gauss&quot;</span>);
<a name="l00155"></a>00155                         firstFilter.append(<span class="stringliteral">&quot;Sharpen&quot;</span>);
<a name="l00156"></a>00156                         firstFilter.append(<span class="stringliteral">&quot;Box&quot;</span>);
<a name="l00157"></a>00157                         addProperty&lt; QVIndexedStringList &gt;(<span class="stringliteral">&quot;Filter&quot;</span>, inputFlag, firstFilter);
<a name="l00158"></a>00158 
<a name="l00160"></a>00160                         <span class="comment">// Generate the filter&#39;s parameters</span>
<a name="l00161"></a>00161                         addProperty&lt;bool&gt;(<span class="stringliteral">&quot;Mask: Size of 5 (gauss)&quot;</span>, inputFlag, <span class="keyword">false</span>);
<a name="l00162"></a>00162                         addProperty&lt;int&gt;(<span class="stringliteral">&quot;Mask: Row (Box)&quot;</span>, inputFlag, 3, <span class="stringliteral">&quot;Row Mask Size&quot;</span>, 1, 10);
<a name="l00163"></a>00163                         addProperty&lt;int&gt;(<span class="stringliteral">&quot;Mask: Col (Box)&quot;</span>, inputFlag, 3, <span class="stringliteral">&quot;Col Mask Size&quot;</span>, 1, 10);
<a name="l00164"></a>00164 
<a name="l00165"></a>00165                         addProperty&lt;double&gt;(<span class="stringliteral">&quot;Threshold high (canny)&quot;</span>, inputFlag, 150, <span class="stringliteral">&quot;High threshold for Canny operator&quot;</span>, 50, 1000);
<a name="l00166"></a>00166                         addProperty&lt;double&gt;(<span class="stringliteral">&quot;Threshold low (canny)&quot;</span>, inputFlag, 50, <span class="stringliteral">&quot;Low threshold for Canny operator&quot;</span>, 10, 500);
<a name="l00167"></a>00167 
<a name="l00168"></a>00168                         
<a name="l00169"></a>00169                         addProperty&lt; QVImage&lt;T,C&gt; &gt;(<span class="stringliteral">&quot;Input image&quot;</span>, inputFlag|outputFlag);
<a name="l00170"></a>00170                         addProperty&lt; QVImage&lt;T,C&gt; &gt;(<span class="stringliteral">&quot;Output image&quot;</span>, outputFlag);
<a name="l00171"></a>00171                         }
<a name="l00172"></a>00172 
<a name="l00173"></a>00173                 <span class="keywordtype">void</span> <a class="code" href="classQVProcessingBlock.html#a0283c799776e0c938538de0b0ae6b463" title="Function to be defined in subclasses with processing code.">iterate</a>()
<a name="l00174"></a>00174                         {
<a name="l00175"></a>00175                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,1&gt;</a> image = getPropertyValue&lt; QVImage&lt;uChar,C&gt; &gt;(<span class="stringliteral">&quot;Input image&quot;</span>);
<a name="l00176"></a>00176 
<a name="l00178"></a>00178                         <span class="comment">// Get the parameters&#39;s current values</span>
<a name="l00179"></a>00179                         <span class="keyword">const</span> <a class="code" href="classQVIndexedStringList.html" title="String List with a current string index.">QVIndexedStringList</a> auxFF = getPropertyValue&lt;QVIndexedStringList&gt;(<span class="stringliteral">&quot;Filter&quot;</span>);
<a name="l00180"></a>00180 
<a name="l00181"></a>00181                         <span class="keyword">const</span> <span class="keywordtype">double</span> threLow = getPropertyValue&lt;double&gt;(<span class="stringliteral">&quot;Threshold low (canny)&quot;</span>);
<a name="l00182"></a>00182                         <span class="keyword">const</span> <span class="keywordtype">double</span> threHigh = getPropertyValue&lt;double&gt;(<span class="stringliteral">&quot;Threshold high (canny)&quot;</span>);
<a name="l00183"></a>00183 
<a name="l00184"></a>00184                         <span class="keyword">const</span> <span class="keywordtype">bool</span> sizeOf5 = getPropertyValue&lt;bool&gt;(<span class="stringliteral">&quot;Mask: Size of 5 (gauss)&quot;</span>);
<a name="l00185"></a>00185                         <span class="keyword">const</span> <span class="keywordtype">int</span> maskRow = getPropertyValue&lt;int&gt;(<span class="stringliteral">&quot;Mask: Row (Box)&quot;</span>);
<a name="l00186"></a>00186                         <span class="keyword">const</span> <span class="keywordtype">int</span> maskCol = getPropertyValue&lt;int&gt;(<span class="stringliteral">&quot;Mask: Col (Box)&quot;</span>);
<a name="l00187"></a>00187                         <a class="code" href="classQVProcessingBlock.html#a61f390e8790a77175a6d6e1049a9d127" title="Stablish a performance breakpoint in the execution of the block.">timeFlag</a>(<span class="stringliteral">&quot;Read input parameters&quot;</span>);
<a name="l00188"></a>00188 
<a name="l00190"></a>00190                         <span class="comment">// Apply the filter</span>
<a name="l00191"></a>00191                         <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;T,C&gt;</a> filteredImage = applyFilter(image, auxFF.getIndex(), threLow, threHigh, sizeOf5, maskRow, maskCol);
<a name="l00192"></a>00192                         <a class="code" href="classQVProcessingBlock.html#a61f390e8790a77175a6d6e1049a9d127" title="Stablish a performance breakpoint in the execution of the block.">timeFlag</a>(<span class="stringliteral">&quot;Apply the filter&quot;</span>);
<a name="l00193"></a>00193 
<a name="l00194"></a>00194                         setPropertyValue&lt; QVImage&lt;T,C&gt; &gt;(<span class="stringliteral">&quot;Output image&quot;</span>, filteredImage);
<a name="l00195"></a>00195                         <a class="code" href="classQVProcessingBlock.html#a61f390e8790a77175a6d6e1049a9d127" title="Stablish a performance breakpoint in the execution of the block.">timeFlag</a>(<span class="stringliteral">&quot;Write input parameters&quot;</span>);
<a name="l00196"></a>00196                         }
<a name="l00197"></a>00197         };
<a name="l00199"></a>00199 
<a name="l00200"></a>00200 <span class="preprocessor">#endif</span>
</pre></div></div>
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<br /><hr><br />
<center><a href="http://perception.inf.um.es/QVision">QVision framework</a>.
<a href="http://perception.inf.um.es">PARP research group</a>.
Copyright &copy; 2007, 2008, 2009, 2010, 2011.</center>
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